Abstract
Podophyllotoxin belongs to the cyclolignan family of natural products. It exhibits cathartic, cytotoxic, antimitotic, anticancer and other biological activities. The new tetralone esters 4, 5, 6 and 7 of podophyllotoxin analogues were synthesized in very good yields by chalcone route. They were synthesized by modifying 1,3-methylene dioxy ring A, ring C, the lactone ring D and the ring E of podophyllotoxin 1 to study structure activity relationship. All the products were characterized by spectral and elemental analysis data.
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